Method of welding a heating element to a vessel for forming a heating container
US5994680A · kind A · utility
2Cited by
0References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Jun 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49083
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric heating element having a central conductor and an outer metallic sheath is welded to a base of vessel to provide a heating container, for hot water in a domestic appliance for example. In order to carry out the welding, the vessel is heated up by an induction heater to a certain temperature and the temperature of the actual contacting welding surfaces raised above the certain temperature to a fusing temperature by applying and controlling electric power supplied to the conductor while the heating element is held firmly in position against the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.